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The collar and cover assembly forms the visible deck-level surround of the skimmer opening
installation must be performed by a licensed pool professional or HVAC service expert
listed under WhisperFlo accessories section Pentair WhisperFlo 015583 Listed as WhisperFlo accessory
If it simply drops into the housing with no threads
Pentair QuikSkim Venturi Nozzle | 516478 Spa Chemical Balancers The collar and cover assemblyThe Pentair QuikSkim Venturi Nozzle (516478) is the OEM replacement nozzle for the QuikSkim surface skimming system. The venturi nozzle is the functional core of the QuikSkim unit, using a pressurized water jet to create suction that draws surface debris toward the skimmer intake. When the nozzle is worn, cracked, or clogged beyond cleaning, surface skimming performance drops noticeably this direct replacement restores the system to factory operation.
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